Contact dermatitis vs plaque psoriasis? Pt has no Hx of psor | Figure 1

Contact dermatitis vs plaque psoriasis? Pt has no Hx of psoriasis. Also has anyone heard of plaque psoriasis from strep? Rapid strep test not done. This is the left antecubital fossa.

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5yo M otherwise healthy. Lesions are slightly pruritic. Present at least a few weeks. Extensor surfaces of elbows only. KOH negative for hyphae. I think it's plaque psoriasis. Do you agree? I advised no treatment for now. Do you agree?

Plaque psoriasis and psoriatic arthritis. These pictures are before steroid and methotrexate. Pt has no insurance. Rash returning once Pt is out of the sun. His arthritis is crippling. Any ideas on further treatment?

A. Guttate psoriasis is a variant of psoriasis usually seen in adolescents and young adults. It is characterized by crops of small, droplike, psoriatic papules and plaques. The word guttate is derived from the Latin gutta, which means “drop.” This type of psoriasis is often found in association with streptococcal pharyngitis.
B. Inverse psoriasis refers to psoriasis that involves intertriginous areas (axillae, groin, umbilicus). This distribution is opposite to the usual extensor distribution of psoriasis vulgaris. Psoriatic lesions with both distributions sometimes can be found in the same patients. Clinically, psoriatic lesions found in these “inverse” distributions often do not have scale, but consist of sharply demarcated red plaques that may become macerated and eroded. Treatment of inverse psoriasis usually involves low-potency (nonfluorinated) topical corticosteroids or topical calcineurin inhibitors.
Source: Dermatology Secrets Plus, 5th edition, by James E. Fitzpatrick. ISBN: 9780323310291. Copyright ©2016 Elsevier, Inc.

Psoriasis guttate?

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